[Prime Minister Juan Negrin at the farewell ceremony for the International Brigade, Les Masies, Spain]

[Republican soldiers carrying wounded soldier on a stretcher, Rio Segre, Aragon front, Spain]

[General Juan Modesto speaking at a farewell ceremony for the International Brigades, Les Masies, Spain]

[Prime Minister Juan Negrin at the farewell ceremony for the International Brigades, Les Masies, Spain]

[Soldiers at farewell ceremony for the International Brigades listening to Juan Modesto, Les Masies, Spain]

[Juan Negrin giving speech at farewell ceremony for the International Brigades, Les Masies, Spain]

[Bridge damaged by Nationalist bombings, Rio Segre, Aragon front, near Fraga, Spain]

[Bridge damaged by Nationalist bombings, Rio Segre, Aragon front, near Fraga, Spain]

[Bridge destroyed by flooding of Republican rebels, Ebro River, Mora de Ebro, Spain]

[Girls looking at plaques in the street during the farewell parade for the International Brigades, Barcelona, Spain]

[Foreign soldiers with arms full of bouquets, farewell parade for the International Brigades, Barcelona, Spain]

[Spanish women and soldiers watch farewell parade for the International Brigades, near Falset, Spain]

[Spanish children perched on a lamppost during the farewell parade for the International Brigades, Barcelona, Spain]

[Girl handing bouquet to volunteer during farewell parade for the International Brigades, Barcelona, Spain]

[Spanish girl embracing volunteer during farewell parade for the International Brigades, Barcelona, Spain]

[Spanish girl embracing volunteer during farewell parade for the International Brigades, Barcelona, Spain]

[Members of the Abraham Lincoln Brigade, farewell ceremony for the International Brigades, Les Masies, Spain]

[Large crowd of soldiers during the farewell ceremony for the International Brigades, Les Masies, Spain]

[Republican soldiers preparing for battle, Rio Segre, Aragon front, near Fraga, Spain]

[Republican soldiers preparing for battle, Rio Segre, Aragon front, near Fraga, Spain]

[Marineros looking over a ledge, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldiers sitting in trenches, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers resting in crevices, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldiers descending mountain, Rio Segre, Aragon front, near Fraga, Spain]